Upgraded UHZ65 FAQS

Upgraded UHZ65 FAQs

If you haven’t seen or read the original press release of the Upgraded UHZ65, you can read it here.

We’re excited that we’ve had so much buzz around our Upgraded UHZ65 projector. However, we’ve had so many people contact us with questions, we’ve decided to create a post on the Frequently Asked Questions. These are also posted on product pages. So, without further ado, here are the questions and answers!

Does it still come with Optoma’s 3 year warranty?
Optoma has approved this modification and the warranty is still valid. Please notify us of any failures first.
If the modified UHZ65 is able to produce up to 80% of the REC2020 Color gamut why did Optoma choose to produce theirs with only REC709 color?
Two main reasons: cost and brightness. To add a custom-tuned cinema filter for this projector would add considerably cost and would place the projector outside of their target price point. The wide color gamut also reduces the overall brightness and Optoma chose to hit their 3,000 lumen output with the UHZ65.
Why do other manufacturers choose to limit their color gamut on their 4K projectors?
If it is a lamp-based projector it is much more difficult (not realistic with most current filter designs) to get much beyond the 60% to 65% of REC2020. Other 4K laser projectors could achieve this, but so far, we’ve seen no other laser light source 4K projectors that have achieved this that we could find for less than $35,000.
Will the modified UHZ65 be bright enough for my screen?
Most likely yes, unless it is over 150” and you have lights on in the room. It also depends on the type of screen, the color mode selected, the color of the walls etc. If you want to watch the projector with some lights on then we would suggest keeping the screen to less than 120”. The best HDR experience will be in a dark theater-like environment with screens less than 140” and a screen gain of .8 to 1.3. A standard white matt screen is a gain of 1.0. .
How accurate is the calibration?
It is as accurate as is possible using a balance between technically correct and a reasonable amount of brightness. Each projector comes with an information sheet for optimizing the user’s preference for brightest or most accurate in each color mode for REC709, DCIP3, or REC2020.
Most projectors have a brightness rating that is really unusable because the image is too yellow or green, is that the case with this projector?
No, the brightest setting “Bright” on the this projector is still very usable and only the trained eye will notice the slight differences in color accuracy and white balance.
If the “Bright” mode is not as accurate as the other modes when would you use it?
The “Bright” mode is used with some lights on like in a sports gathering or for very large screens over 150” and up to 180”.
Since most projectors that use cinema filters are lamp based and start with 1,500 to 1,900 lumens and end up with less than 1,000 lumens with their filter engaged, how is the modified UHZ65 different?
Since the modified UHZ65 starts with 3,000 lumens we are able to achieve a very good balance of wide color and good brightness of up to a usable 2,400 lumens. The HDR mode with wide color (up to 80% of REC2020) will typically reach a brightness of 1,600 to 1,800 lumens. Lamp based projectors rarely reach past 65% of REC2020 with their best color mode and rarely reach past 1,200 lumens.
Why do some who have seen the modified version think it is as bright or brighter than the unmodified UHZ65?
It is largely due to the Helmholtz-Kohlrausch effect which states that pure color is perceived as being brighter.

What other questions do you have?


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